Scatter Plot
Is there a causal relationship between shoe size and reading level?
What is No they may be correlated due to age, but one does not cause the other.
What does it mean when two lines are parallel?
What is they never intersect and have the same slope.
What is the next number in this sequence: 2, 4, 6, 8, ___?
What is 10
How many degrees are in the interior angles of any triangle?
What is 180 degrees
What is the degree of the polynomial 3x4 + 2x2 - 7?
What is 4
A scatter plot shows a general upward trend between hours of sleep and alertness during the day.
What type of correlation is this?
What is Positive correlation as sleep increases, alertness also increases.
What is the slope of any line that is parallel to the line y = 3x + 1?
What is 3
What is the common difference in the arithmetic sequence: 5, 9, 13, 17…?
What is 4
A triangle has angles measuring 35° and 65°. What is the measure of the third angle?
What is 80°
Simplify: (2x2 + 3x) + (x2 - 5x + 4)
What is 3x2 - 2x + 4
You enter scatter plot data into a graphing calculator and get the regression equation y = 2.3x + 45.
What does the 2.3 represent in context?
What is It’s the slope for each 1 unit increase in x, y increases by 2.3 units on average.
True or False: Parallel lines can have different y-intercepts.
What is true
Is the sequence 3, 6, 12, 24 geometric or arithmetic?
What is geometric
What is the name of a triangle that has two equal sides and two equal angles?
What is Isosceles triangle
Multiply: (x + 2)(x + 5)
What is x2 + 7x + 10
Using the equation y = 5x + 55, predict the test score for a student who studies for 6 hours.
What is 85
A line passes through the points (2, 3) and (4, 7). What is the slope of a line parallel to it?
What is slope = 2
What is the 10th term of the arithmetic sequence: 7, 11, 15, 19…?
Hint! use formula an=a1+(n-1)d=7+(10-1)(4)
What is 43
A triangle has sides of length 5 cm, 12 cm, and 13 cm. True or false this triangle a right triangle?
What is True
Factor completely: x2 - 9x + 20
What is (x - 4)(x - 5)
Using the equation y = 5x + 55, predict the score for a student who studies 4 hours.
If the actual score is 73, what is the residual?
What is -2
Prediction:
y = 5(4) + 55 = 20 + 55 = 75
Residual = Actual - Predicted
73 - 75 = -2
Line A has the equation y = -2x + 4. Write the equation of a line parallel to Line A that passes through the point (1, 5).
What is y = -2x + 7
Find the explicit formula for the sequence: 2, 6, 10, 14…
What is an=4n-2
Using the Pythagorean Theorem, find the length of the missing leg of a right triangle if the hypotenuse is 10 and one leg is 6.
What is 8
Factor completely: 2x3 + 6x2 - 8x
What is 2x(x + 4)(x - 1)